This chimes with what we’re seeing in Ahrefs Model Radar, our new advertising and marketing intelligence device which helps you to monitor your model presence in AI search.
We analyzed 25M AI overview key phrases within the two-month window of our evaluation.
Right here’s what that information reveals…
We analyzed 25M AI Overviews within the US and located that AI overviews have greater than doubled since Google’s March Core Replace.
Ahrefs Model Radar tracks international AI overview information each day, permitting us to investigate two months of US-based AI overviews.
We tracked the full variety of AI overviews between the dates of sixth February and sixth Might.
25 million AI overviews later, we observed that essentially the most substantial day-to-day change within the dataset (6.26%) occurred between March twelfth and March thirteenth, coinciding with the rollout of Google’s newest Core Replace on March thirteenth.
The entire variety of AI Overviews grew by 116% between March twelfth (pre-update) and Might sixth, in response to our database.
Evaluating the month earlier than the Core Replace (February tenth – March twelfth) to the month after (March thirteenth – April twelfth), we additionally noticed a 57% development in complete AI overviews.
After the March Core Replace, cumulative development (i.e. how AI overviews grew day-by-day, factoring within the impact of compounding) hit 87.27%, reflecting a powerful, compounding upward pattern.
| Interval | Cumulative development | Avg. day by day development charge |
|---|---|---|
| Earlier than Core Replace | 14.37% | 0.47% per day |
| After Core Replace | 87.27% | 2.12% per day |
This type of development aligns with findings from BrightEdge. Their research confirmed that AI overviews in Leisure, Restaurant, and Journey industries elevated by 432% on common following the March Core Replace.
If you wish to see post-update AI overview development for your self, simply do an open/empty search in Ahrefs Model Radar.
It’s vital to notice that Google’s March Core Replace just isn’t Google’s solely AI overview enlargement.
Our research pertains to US outcomes, however Google additionally rolled out of AI overviews within the EU throughout this time.
And on March fifth, Google introduced that it was rolling out AI overviews to extra folks
…teenagers can now use AI Overviews, and also you’ll not must check in to get entry.
Since that date, the variety of AI overviews we monitor has grown by 119.32%.
On the time of writing, the proportion of US key phrases triggering AI overviews in search outcomes has additionally doubled–leaping to 16.48%, up from simply 7.6% on March thirteenth.
In different phrases, AI overviews haven’t simply grown as a result of the full # of key phrases has grown. They now seem for twice as many searches, taking over a bigger proportion of all key phrases for the reason that March Core Replace.
Search quantity reveals related development: AI overviews now account for 11.8% of all US-based key phrase search quantity, in comparison with 6.2% on March thirteenth.
Lately, our Director of Content material Advertising and marketing, Ryan Regulation, and our Knowledge Scientist, Xibeijia Guan, revealed analysis revealing that AI Overviews reduce clicks by 34.5%.
Since Ryan’s and Xibeijia’s research consists of March 2025 information, the enlargement of AI Overviews following the Core Replace probably performed a job in falling CTRs.
AI overviews are on the up and up since Google’s March Core Replace and subsequent AI overview rollouts—so which websites are benefitting from that development?
We headed to the brand new “Domains” report inside Ahrefs Model Radar to seek out out.
This report reveals you essentially the most referenced domains throughout the sitelinks of AI overviews.
We analyzed 40 domains on the twelfth of March (e.g. the day earlier than the Core Replace) vs Might sixth, based mostly on their…
- AI overview market share: Share of citations throughout the full market.
- AI overview market attain: Share of quotation impressions throughout the full market.
| Area | AIO share | 📈 | AIO attain | 📈 | |
|---|---|---|---|---|---|
| 1 | reddit.com | 5.50% |
4.20% |
10.20% |
8.30% |
| 2 | quora.com | 4.00% |
2.60% |
6.30% |
8.30% |
| 3 | webmd.com | 1.50% |
0.70% |
6.50% |
3.70% |
| 4 | brainly.com | 0.60% |
0.50% |
1.00% |
0.70% |
| 5 | mayoclinic.org | 1.40% |
0.30% |
7.00% |
-2.00% |
| 6 | nih.gov | 1.80% |
0.30% |
5.50% |
0.40% |
| 7 | microsoft.com | 0.50% |
0.20% |
1.00% |
0.20% |
| 8 | justanswer.com | 0.40% |
0.20% |
0.40% |
0.20% |
| 9 | apple.com | 0.70% |
0.20% |
1.20% | 0.00% |
| 10 | clevelandclinic.org | 1.60% |
0.10% |
5.20% |
-3.60% |
| 11 | www.nhs.uk | 0.50% |
0.10% |
2.20% |
0.60% |
| 12 | help.google.com | 0.30% |
0.10% |
0.80% |
0.20% |
| 13 | aapc.com | 0.20% |
0.10% |
0.30% |
0.10% |
| 14 | quizlet.com | 0.20% |
0.10% |
0.20% | 0.00% |
| 15 | tripadvisor.com | 0.20% |
0.10% |
0.20% | 0.00% |
| 16 | instagram.com | 0.30% |
0.10% |
0.50% |
-0.10% |
| 17 | certainly.com | 0.40% |
0.10% |
0.60% |
-0.20% |
| 18 | verywellhealth.com | 0.40% |
0.10% |
0.50% |
-0.20% |
| 19 | medlineplus.gov | 0.30% |
0.10% |
1.10% |
-0.40% |
| 20 | merriam-webster.com | 0.30% | 0.00% | 3.30% |
1.10% |
| 21 | stackexchange.com | 0.30% | 0.00% | 0.40% | 0.00% |
| 22 | fb.com | 0.30% | 0.00% | 0.50% |
-0.10% |
| 23 | goodrx.com | 0.20% | 0.00% | 0.30% |
-0.10% |
| 24 | dictionary.com | 0.20% | 0.00% | 1.10% |
-0.10% |
| 25 | linkedin.com | 0.20% | 0.00% | 0.20% |
-0.20% |
| 26 | businessinsider.com | 0.20% | 0.00% | 0.20% |
-0.30% |
| 27 | amazon.com | 0.40% | 0.00% | 0.70% |
-0.40% |
| 28 | sciencedirect.com | 0.30% | 0.00% | 0.60% |
-0.50% |
| 29 | harvard.edu | 0.20% | 0.00% | 0.30% |
-0.50% |
| 30 | cdc.gov | 0.20% | 0.00% | 0.50% |
-0.80% |
| 31 | petmd.com | 0.20% |
-0.10% |
0.30% |
-0.30% |
| 32 | yahoo.com | 0.20% |
-0.10% |
0.30% |
-0.40% |
| 33 | fandom.com | 0.20% |
-0.10% |
0.30% |
-0.50% |
| 34 | imdb.com | 0.20% |
-0.10% |
0.30% |
-0.50% |
| 35 | britannica.com | 0.40% |
-0.10% |
0.90% |
-1.90% |
| 36 | en.wikipedia.org | 4.00% |
-0.10% |
10.40% |
-4.70% |
| 37 | medicalnewstoday.com | 0.80% |
-0.20% |
1.30% |
-1.20% |
| 38 | youtube.com | 1.10% |
-0.20% |
1.50% |
-1.70% |
| 39 | healthline.com | 1.50% |
-0.20% |
2.20% |
-2.60% |
| 40 | research.com | 0.30% |
-0.40% |
0.50% |
-1.40% |
…and tracked any development or decline between the 2 dates.
In the case of “AI overview market share”, Reddit is much and away essentially the most dominant participant, displaying up for five.5% of all AI overview queries.
This was not the case earlier than the March Core Replace.
In reality, on March twelfth, Reddit really positioned sixth by way of AI overview market share, beneath the likes of Quora, Healthline, and Wikipedia.
| Area | Market share | Market attain | |
|---|---|---|---|
| 1 | en.wikipedia.org | 4.10% | 15.10% |
| 2 | healthline.com | 1.70% | 4.80% |
| 3 | nih.gov | 1.50% | 5.10% |
| 4 | clevelandclinic.org | 1.50% | 8.80% |
| 5 | quora.com | 1.40% | 2.10% |
| 6 | reddit.com | 1.30% | 1.90% |
| 7 | youtube.com | 1.30% | 3.20% |
| 8 | mayoclinic.org | 1.10% | 9.00% |
| 9 | medicalnewstoday.com | 1.00% | 2.50% |
| 10 | webmd.com | 0.80% | 2.80% |
Reddit’s “AI overview market share” has shot up by 4.2% for the reason that March Core Replace, which suggests it has claimed tens of millions of recent area citations in AI overviews.
Quora is the one different web site to have seen definitive development by way of AI overview market share—practically each different web site has skilled modest to damaging development (south of ~0.5%).
In the case of the domains incomes essentially the most impressions in AI search, the winners are:
| Area | AI overview attain | 📈 | |
|---|---|---|---|
| 1 | reddit.com | 10.20% |
8.30% |
| 2 | quora.com | 6.30% |
4.20% |
| 3 | webmd.com | 6.50% |
3.70% |
| 4 | merriam-webster.com | 3.30% |
1.10% |
| 5 | brainly.com | 1.00% |
0.70% |
These websites have seen important development throughout a number of the most seen AI overview key phrases in our database.
In the meantime, the next websites have gone the opposite manner.
| Area | AI overview attain | 📈 | |
|---|---|---|---|
| 1 | en.wikipedia.org | 10.40% |
-4.70% |
| 2 | clevelandclinic.org | 5.20% |
-3.60% |
| 3 | healthline.com | 2.20% |
-2.60% |
| 4 | mayoclinic.org | 7.00% |
-2.00% |
| 5 | britannica.com | 0.90% |
-1.90% |
Regardless of having the best attain (10.4%) of any area—surpassing even Reddit—Wikipedia has misplaced extra seen AI overview key phrases (4.7%) than every other web site we analyzed.
Boards and UGC dominate AI overviews
Boards and Q&A websites like Reddit and Quora have benefited most from the AI overview surge since Google’s March Core Replace.
They’ve seen the strongest development sample out of all area classes.
One doable rationalization is that boards are inherently conversational, which aligns completely with the Q&A format of AI overviews.
Most websites noticed impartial or optimistic good points
Two-thirds of the domains we analyzed noticed impartial or optimistic development in AI overview market share following Google’s March Core Replace. On common, AI overview market share grew by 0.21%.
Nonetheless, AI overview market attain skilled a slight decline (-0.13%), indicating {that a} smaller variety of dominant web sites are hoovering up a number of the extra seen AI overview key phrases.
It’s price noting that our evaluation centered solely on the 40 most cited domains in AI overviews.
It’s fully doable that issues may look very totally different throughout a bigger dataset.
Right here’s how one can maintain tabs on the trajectory of AI overviews, on the entire, and in your area of interest.
Examine Ahrefs Model Radar
As I already talked about, for a top-level, industry-agnostic AI overview of market and pattern information, you are able to do an open search in Model Radar.
However you may also use Model Radar to trace development throughout mentions of phrases you care about (e.g. model, rivals, merchandise, subjects) in AI overview queries and AI overview outputs.
For instance, say I needed to evaluate the expansion of “Ahrefs” mentions in each AI overview key phrases and AI overview content material, I can drop that key phrase into the search bar, and choose “key phrase OR AI overview”.
Then I can dive into our AI overview development (or decline) in phrases of:
- Mentions
- Impressions
- Market share/attain
- Competitor share/attain
Ahrefs Model Radar additionally enables you to monitor your relative possession of particular subjects vs. rivals, and monitor how that adjustments over time.
Simply apply a filter to the dataset–on this case I’ve centered on our share throughout the subject of backlinks.
Then, within the “Discover mentions of manufacturers, services or products” part, enter your model and hit “Recommend extra” for AI generated competitor options.
And also you’ll see how your AI overview possession tracks over time, vs. your competitors.
Do a site search in Ahrefs Model Radar
Learn how typically your web site and your rivals are being referenced in AI overviews, and see how that grows or dips over time.
Simply click on the “Domains” tab in your unique search.
Examine Ahrefs Natural Key phrases report
Head to Ahrefs Web site Explorer report, and navigate to “Natural Key phrases”
Then apply a SERP Function filter…
And verify “AI overview”. To see each key phrase you’re rating for that returns an AI overview on the prime of the SERP, choose “On SERP”.
These symbolize AI overview alternatives/targets.
To deal with the AI Overviews you’re at present proudly owning, choose “The place goal ranks”.
And use the “Positions” pattern chart to trace your AI overview possession over time.
What’s subsequent?
Our information reveals that AI Overviews have exploded with Google’s newest Core Replace.
Google has mentioned it is going to be releasing extra Core Updates, extra usually.
Use Ahrefs Model Radar to control the presence of AI overviews within the SERPs—particularly round future Core Updates.
Monitor how your model seems in AI overviews, how typically AI cites your content material, and the way your rivals present up over time.
You can too verify in in your CTR in Google Search Console or Ahrefs Net Analytics. If clicks drop off, AI overview development might be the perpetrator.
Now may additionally be the time to take a contemporary take a look at the way you dimension up your content material wins—shifting from traffic-centric metrics to model consciousness indicators—to get a greater understanding of your home throughout the AI ecosystem that now stands between you and your viewers.
